Wagon-jack for portable grain dumps and elevators.



PATENTED JAN. 29, 1907. E. H. & H. V. SGHROEDER. WAGON JAG'K FOR PORTABLE GRAIN DUMPS AND ELEVATORS.

APPLIGATION FILED APR. 27, 1904.

3 SHEETS-SHEET 1.

@xh/tmawaomac whom oai'er,

3 0'. 842,714. PATENTED JAN. 29, 1907.

' E. H. & H. V. SGHROEDBR. WAGON JAGK FOR PORTABLE GRAIN DUMPS AND ELEVATORS.

APPLIGATIGN FILED APR.27,1904. a SHEETS-SHEET 2.

" Clttou'uul;

.No. 842,714. PATENTED JAN. 29, 1907.

- E. H.-& H. v. SCHROEDBR.

WAGON JACK FOR PORTABLE GRAIN ,DUMPS AND ELEVATORS.

APPLICATION FILED APR.27,1904.

. v 3, SHEETS-SHEET 3.

. Q EmsMSa/zruaier l/vbtwew co m fltto omu v ERNST SCHROEDEE AND HENRY V. SCHROEDER, OF MTNIER ILLINOIST WAGON-JACK FOR PQR ABLE GRAIN DUIVIPS ANDQE-LEVATORS.

Specification of Letters "Patent.

Patented J an. 29, 1907.

application filed Apri127,190 4. Serial No. 265,217.

To all whom, it may concern:

Be it known that ERNST H. Sonnonnnn and HENRY V. SQHROEDER, citizens of the United States, residing at Minier, in the county of Tazewell and State of Illinois, have invented a new and useful Wagon-Jack for Portable Grain Dumps and Elevators, of

which the following is'a specification.

The invention relates to improvements in Wagon-jacks for portable grain dumps and elevators. 4

The object of the present invention is to improve the construction of wagon-jacks for portable grain dumps and elevators and to provide a simple and comparatively inexpensive one of great strength and durability adapted to be operated by the gearing for operating the elevator and capable when the front portion of a wagon has been raised sufficiently to discharge the contents of the wagon into the conveyer of automatically stopping the wagon-jack.

A further object of the invention is to provide a wagon-jack of this character which will be capable of reversing the motion of the gearing of the hoisting mechanism, whereby after the contents of a wagon have been discharged into the-conve 'er the wagon will be gradually lowered to a horizontal position.

Another object of-the invention is to provide a wagon-jackwhich as the wagon-receiving platform is raised will permit the said' platform to move rearward gradually,'where by the platform will be moved substantially in an arc of a circle to permit the hind wheels of the wagon to remain stationary and also torelieve the wagon-jack of strain resulting from any tudinallyj With these and other objects in View the invention consists in the constructionand novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that .variouschanges in the form,

proportion, size, "and, minor details of construction within the scope of the claimsmay be'resorted to without departing from the s iritor sacrificing any of the advantages of tie invention. i i

In the drawings, Figure 1 is a perspective View of a grain dump and elevator provided with a wagon-jack constructed in accordance with this invention, Fig. 2-is a longitudinal sectional viewof the same. Fig. 3 is attend tendency to move the wagon longi-' construction for automatically throwing the 4 is a horizontal sectional view.

Like numerals of reference designate correngs.

1 designates a base, having inclined or slanting end portions 2 for'enabling a wagon to be readily driven onto the base. The base upwardly-extending frames or supports 3 and 4, on which is mounted the hoisting mechanism for raising and lowering a wagonreceiving platform or carriage 5. Each of the frames is composed of two sides 6 and 7, connected by suitable cross-pieces, the side 6, which is located at the adjacent'end of the base, being inclined for a purpose hereinafter described. The other side 7, of the frame is preferably arranged in.a vertical position, as clearly shown in Fig. 2 of the drawings.

The platform or elevating-frame which receives the front wheels 8 of a wagon 9 is preferably composed of parallel inner and outer bars 10 and 11 and connecting-bars 12, the parallel bars 10 and 11 being spaced apart to receive the front wheels of the wagon, whereby the wheels will be prevented from slipping backward or forward. The platform is provided with suitable openings 13 and lafor the reception of the bars 10 and 11 so that when thereceiving-frameis lowered it willcomplete the floor of the base and lie substantially flu sh with the same.

Cables 15' and 16 of hoisting mechanism are connected with the platform at the corners thereof, and they extend upward from the corners to pulleys 17 and 18, the pulley 17 being located in rear of the outer or end bar 1,0.of the platform, whereby when the clined side face of the upright frames and moved gradually rearward as it is raised to accommodate itself to the rearward movement of the front wheels of the wagonand to prevent any tendency of the wagonaclrto move the wagon longitudinally 1n ralsin lowering the front of the same. The ca les outer sides thereof, and they deplend at the inner sides of the pulleys, and sec pair of capiece of material, as clearl shown in Fig, 2. The cabies, are connects which are secured to and adapted to be elevation of the wagon-jack, illustrating the' "platform is raised it will lie against the in 'exte11d' over the pulleys 17 and 18 from the with chains 19,

hoisting mechanism out of operation. Fig.

sponding parts in all the figures of the drawis provided at opposite sides of one end with bles is preferably constructed of a single wound upon spools of a drum-shaft 21 of on the upright frame 3 by a bolt or other power mechanism disposed transversely of suitable means. The upper arm of the lever the base 1 and journaled in suitable bearings 34 is connected with an operating-rod 36 for of the same and located at the bottom of the enablingthe clutch member to be shifted by upright frames. When the shaft is rotated, hand,ashereinafterexplained. Thelowerend these chains will be simultaneously wound .of the shifting-lever is provided With a staple up on or unwound from the spools 20, accord- 37 ,forming a guide and receiving one flight of mg to the direction of the rotation. aspi'oeket-ehain 38, arranged on sprocket-pin- The transverse bottom shaft has keyed or ions 39 and 40. The sprocket-Wheel 39 is [0 otherwise secure-d to it a' worm-gear 22, mounted on one end of the transverse shaft 21, which meshes with a'worm 28 of a'horizohtal'. and the othersprocket-wheel is mounted on a shaft 24:, j'ournaled in'suitable bearings of the suitable stub-shaft 4-1, located near the adj aupright frame 3 and am'angediat rightangles cent end of the base; as clearly shown in Fig. 4. to the transverse shaft 21'; Thisworm-shaft ""The"sp'roeket-chain,- whichis I approximatel '5' 24 is connected with a 'continuously-driveh' horizontal, is provided at two of its links with power-shaft 25 by differential spur-and projecting portions 42- and 43', arranged to sprocket gearing arranged as clearly shown alternately engage the lever 34 fors'hifting in Fig: 2' and adapted to 'be driven by 'either the'same to throw the clutch member out of the spur or sprocket -gearing; whereby; the' engagement, -andthereby stopthe wagon-- 2o shaft 24is adaptedto be rotated in either dijack. The links which are provided with rection to raise'or lower the wagon-receiving theprojectionsareotherwise constructed platforrri. The spur-gear 26 is fixed to the similar tothe other links ofthe sprocketshaft 245, while the spur-gear '27 islobsely ar chainya nd they may be readily arranged at *ran'ged on the shaft 25, being provided at its the desired point to secure the proper oper- 251" inner'fac'e with a elutch section 283adapted' :ation of the shifting-lever: This construc- "to be engaged by a movable clutch member tion-eonsti-tutes adjusting means for varying 29, which is-lo'eated between the spur-gear 27 the extent of the movement 0f* the 'wagon. and the" sprocket-wheel 3OI",-The"sprocket-* The-motion 'of the -.Wagon-jack-is communi wheel 30 'is' provided at its inner-faeewith*-f catedtothe sprocket-chain 38, and when the 3'0 a'clutch-section 3'1, and the-movableclutclr' same-has traveled a preidetermineddistance 5 member 29 is adapted to beshifted longituone of the projecting portion's thereof'will :di'nally of the shaft 25 toengage it .with' engage the guide ofthe shifting-lever and "eitherthe spur-gear 27 or the sprocket-wheel throwtheclutch member out of operation, 30. 1 The movable clutch member is slidably which 'will stop the'wagon-jaek; The worm 5 interlockedivith the shaft 25 by a key and a "will lock the agon-receiving frame inits keyway or other suitable meansyand when -;elevated position and will prevent the gearit is in'engagement'with orfe'of the gears the ing from being rotated by the weight of a same will belock'ed to the shaft 25 and will wagonrandits contents:' --The spur-gearing communicate motion to thewcounter-shaft' employed for hoisting the front portion of 46 24. 'The'spurgearing which raises'the elee. the wagon, and-after theeontents of the lat- IO 5 'vating frame or platform is' composed of" ter have-been discharged into the transverse membersor wheels of substantially'the same "'eonveyer 44 the shiftihg-leveris moved by size, so that the countr-shaft 24 travels at" h andteearrythe movable clutchmemberinto the same-rate of speed as the power-shaft 25; engagement'with the clutch-section of the ad- The'sproeket-gearing has'itslower'sproeket'- 'jacent sprocket wheell "This-Will reverse the no pinion; which is mounted on the-counter rotatiofi of the shaft 24- and Will lower the shaft, ofconsiderably less diameter than the" wagon to' a horizontal posit on." ,Whe'rr the uppersproeket-wheel, whiehis mounted on wagon-platform reaches the lll'IlliZOflhS-dOWD- the power-shaft, whereby the 'eounter shaft" ward movemena the other pro ectmg por- 5'0' will be rotated af'a higher rateof speed than" tion of the sprocket-chain 88 will shift the the power-shaft. he "sprocket gearing is level audsto'p theiwagon-jaek. Iemployed for-lowering the elevatin g -plat- Whileituspreferredto-employ-the spur form, and as the'eounter-shaft rotates at the and s rocket-gearing for communicating niosame rate f speed as the power-shaft'in-rais-f tion om thesha'ft 25 to the shaft 24 owing ing the elevating-frame and at an increased to the-simplicity of the'operation of the same, I 2

speed whenlowerim the 'elevatihg frame 1t-yt itwill be appa'rent that any other ar- '!will be 'cle'ar'that t e said elevating-frame rangementof'differential gearmg for revers- I moves downward at an ac'celerateds "eed. ing niotion 'andw for lowering the elevating '7 The shaft 25, whichis disposed orizon' 'platformat'an accelerated speed may be sub- 60' tallyan'd which constitutes a powr shaft, is stituted for that shown and-deseribed 1 2 5 3 connected b a'tumbiingrodtor:shaft '32 with I "r Having thus' fullydesenbed our invention, the gearing or operating" the elevator 33; -whatwe'elarm as new;"and-desire-to secure by The movable clutch member is connected Letters Patent, 1s i 1 with the-lower arm of an upriglitshifting- 1:-Irra dev1cne of the class-described, the '6 5 lever 34,fulcru1'ned between its-"ends at 35 ebmbination of -a-wagon-"recmvmgplatform 13o composed of connected inner and outer'bars, upright frames at each end extending between the inner and outer bars and provided with inclined sides receiving the platform,

cables arranged in pairs on each frame and combination of a wagon-receiving platform,

u r1 p at orm, a pair of s acedpulleys arranged at the top of each of t e frames, a pair of cables connected with each end of thepla'tfo rm' at difierent points and passing over the said pulleys, a transverse shaft extending entirely across the device and arranged beneath the platform, chains connected with each pair of the cables and with the. shaft, and [means for rotating the shaft, substantially as described.

3. In a device of the class described, the

corpbination of. elevating means having a clu clutch and. provided with -a guide, and

sprocket-gearing operated by the said means and provided with a sprocket-chain passing through said guide and provided with means for operating the lever to shift the clutch automatically, substantially as described.

4. In a device of the class described, the

combination of a wagon-receiving platform, a transverse shaft, means for'conn'ecting the said shaft with the platform, a pair of longitudinal shafts, worm-gearing connecting one of the longitudinal shafts with the transverse shaft, two sets of gearing connecting the lonigritndinal shafts for communicating motion om one to the other and for reversing such .motion, an intermediate clutch member for engaging either gearing, a shifting-lever connected with the clutch member, and an endght frames arranged at the endsof the.

less connection operated by the said gearing and provided with means fpr shifting the lever to operate the clutch automatically, subs'tantially as described. t

5. In a device of the .class described, the

combination of upright tapering frames provided with front inclined guiding-faces, an

elevating frame or platform provided with front and rear bars embracing the upright frames and fitting the same snugly when the elevating frame or platform is in its lowermost position, the. spaces between the front and rear bars of the elevating frame or plat form being. greater than the width. of the said frames when more or less elevated, the front barfbeing adapted to swing rearwardly against and slide'on the inclined faces of the u right frames when the elevating-frame or p at orm is raised, and hoisting mechanism connected with, the frame or platform.

. 6. In a device of the classdescribed, the combination of hoisting mechanism, spur and sprocket gearing for diflerentially operating the hoisting mechanism, an intermediate clutch member for engaging either gearing,-and means 0 erable by the said gearch, a shifting-lever connected with the I mg for automatical y shifting "the clutch member. t

7. In a device of the class described, the combination of hoisting-mechanism, power .mechanism embodying shafts, differential tures in the presence of two witnesses.

.ERNST H. SCHROEDER.

. HENRY V. SCHROEDER.

Witnesses-z i VALENTIN IMIG, Sen.,

ERNEST O..IMIG. 

